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/*
* ===============================LICENSE_START======================================
* dcae-analytics
* ================================================================================
* Copyright © 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ============================LICENSE_END===========================================
*/
package org.openecomp.dcae.apod.analytics.dmaap;
import com.google.inject.AbstractModule;
import com.google.inject.Guice;
import com.google.inject.Injector;
import org.openecomp.dcae.apod.analytics.dmaap.domain.config.DMaaPMRPublisherConfig;
import org.openecomp.dcae.apod.analytics.dmaap.domain.config.DMaaPMRSubscriberConfig;
import org.openecomp.dcae.apod.analytics.dmaap.module.AnalyticsDMaaPModule;
import org.openecomp.dcae.apod.analytics.dmaap.service.publisher.DMaaPMRPublisher;
import org.openecomp.dcae.apod.analytics.dmaap.service.publisher.DMaaPMRPublisherFactory;
import org.openecomp.dcae.apod.analytics.dmaap.service.subscriber.DMaaPMRSubscriber;
import org.openecomp.dcae.apod.analytics.dmaap.service.subscriber.DMaaPMRSubscriberFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.annotation.Nonnull;
/**
* Creates pre injected implementations for {@link DMaaPMRPublisher} and {@link DMaaPMRSubscriber}
* <p>
* Usage:
* <p>Create an instance of DMaaP MR Factory</p>
* <pre>
* DMaaPFactory dmaapFactory = DMaaPFactory.initalize()
* </pre>
* <p>Create a new DMaaP MR Publisher</p>
* <pre>
* DMaaPMRPublisher publisher = dmaapFactory.createPublisher(publisherConfig)
* </pre>
* <p>Create new DMaaP MR Subscriber</p>
* <pre>
* DMaaPMRSubscriber subscriber = dmaapFactory.createSubscriber(subscriberConfig)
* </pre>
* <p>
* <strong>All Clients must use this Factory to initalize DMaaP Message Router Publishers and Subscribers</strong>
* </p>
* <p>
* @author Rajiv Singla . Creation Date: 10/20/2016.
*/
public class DMaaPMRFactory {
private static final Logger LOG = LoggerFactory.getLogger(DMaaPMRFactory.class);
private final Injector injector;
public DMaaPMRFactory(AbstractModule guiceModule) {
injector = Guice.createInjector(guiceModule);
}
/**
* Returns configured instance of {@link DMaaPMRPublisher}
*
* @param publisherConfig Publisher Config
* @return configured instance of DMaaP MR Publisher
*/
public DMaaPMRPublisher createPublisher(@Nonnull DMaaPMRPublisherConfig publisherConfig) {
final DMaaPMRPublisherFactory publisherFactory = injector.getInstance(DMaaPMRPublisherFactory.class);
LOG.debug("Creating new DMaaP MR Publisher Instance with configuration: {}", publisherConfig);
final DMaaPMRPublisher dMaaPMRPublisher = publisherFactory.create(publisherConfig);
LOG.info("Created new DMaaP MR Publisher Instance. Publisher creation time: {}",
dMaaPMRPublisher.getPublisherCreationTime());
return dMaaPMRPublisher;
}
/**
* Returns configured instance of {@link DMaaPMRSubscriber}
*
* @param subscriberConfig Subscriber Config
* @return configured instance of DMaaP MR Subscriber
*/
public DMaaPMRSubscriber createSubscriber(@Nonnull DMaaPMRSubscriberConfig subscriberConfig) {
final DMaaPMRSubscriberFactory subscriberFactory = injector.getInstance(DMaaPMRSubscriberFactory.class);
LOG.debug("Creating new DMaaP MR Subscriber Instance with configuration: {}", subscriberConfig);
final DMaaPMRSubscriber dMaaPMRSubscriber = subscriberFactory.create(subscriberConfig);
LOG.info("Created new DMaaP MR Subscriber Instance. Subscriber creation time: {}",
dMaaPMRSubscriber.getSubscriberCreationTime());
return dMaaPMRSubscriber;
}
/**
* Creates an instance of {@link DMaaPMRFactory}
*
* @return {@link DMaaPMRFactory} factory instance
*/
public static DMaaPMRFactory create() {
final DMaaPMRFactory dMaaPMRFactory = new DMaaPMRFactory(new AnalyticsDMaaPModule());
LOG.info("Created new instance of DMaaP MR Factory");
return dMaaPMRFactory;
}
}
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